Feed-Forward Staircase Codes
Lei M. Zhang, Laurent Schmalen

TL;DR
This paper introduces feed-forward staircase codes that eliminate parity-propagation issues, enabling systematic termination and broadening application scope while maintaining comparable complexity and error performance to traditional staircase codes.
Contribution
The paper presents novel feed-forward and partial feed-forward staircase codes that resolve parity-propagation, allowing for systematic termination and application in systems requiring it.
Findings
Performance similar to staircase codes in error-floor and waterfall regions
Encoding complexity comparable to traditional staircase codes
Effective in systems where parity-propagation is undesirable
Abstract
We propose two variants of staircase codes that resolve the issue of parity-propagation in their encoding process. The proposed codes provide a systematic way of terminating a staircase code after an arbitrary number of blocks. The class of feed-forward staircase codes are introduced, which uses a self-protection technique to avoid parity-propagation. We also introduce the class of partial feed-forward staircase codes, which allows parity-propagation to occur over a given number of blocks. By amortizing the complexity of self-protection over several standard staircase blocks, the encoding complexity of these codes is made comparable to staircase codes. Partial feed-forward staircase codes have the same error-floor as staircase codes. Simulations confirm that the performance of the proposed codes in both the waterfall and error-floor regions is similar to the original staircase codes.…
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Taxonomy
TopicsError Correcting Code Techniques · Advanced Data Storage Technologies · Algorithms and Data Compression
